
Five Americans held as hostages by Iran have been returned to the United States following a political deal in which President Joe Biden agreed to unfreeze US$6 billion in Iranian funds held in South Korean banks in exchange for the prisoners.
Hostage-taking has been frequently used by both states and insurgent groups as a means to extract funds or concessions from more powerful states. Iran took 52 American diplomats and citizens hostage in 1979 and held them for over a year.